Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 17, Problem 10DRQ
Define each of these terms, and indicate how each is determined.
a. Expected activity time.
b. Variance of an activity time.
c. Standard deviation of a path’s time.
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Identify the term being described for each of the following: (a). A sequence of activities in a project. (b). The longest time sequence of activities in a project. (c). Used when two activities have the same starting and finishing points. (d). The difference in time length of any path and the critical path. (e). The statistical distribution used to describe variability of an activity time. (f). The statistical distribution used to describe path variability. (g). Shortening an activity by allocating additional resources.
Define each of these terms, and indicate how each is determined.a. Expected activity time
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Chapter 17 Solutions
Operations Management
Ch. 17 - A project manager may need two skill setsthose of...Ch. 17 - Explain the term project champion and list some...Ch. 17 - List the steps in risk management.Ch. 17 - Give some examples of ethical issues that may...Ch. 17 - What are the key advantages of using project...Ch. 17 - What is a work breakdown structure, and how is it...Ch. 17 - Identify the term being described for each of the...Ch. 17 - List the main advantages of PERT. List the main...Ch. 17 - Why might a probabilistic estimate of a projects...Ch. 17 - Define each of these terms, and indicate how each...
Ch. 17 - Why might a person wish to be involved with a...Ch. 17 - Prob. 12DRQCh. 17 - What are some aspects of the project managers job...Ch. 17 - What is the main benefit of a project organization...Ch. 17 - What trade-offs are associated with time and cost...Ch. 17 - Who needs to be involved in assessing the cost of...Ch. 17 - Prob. 3TSCh. 17 - Project management techniques have been used...Ch. 17 - Give three examples of unethical conduct involving...Ch. 17 - For each of the following network diagrams,...Ch. 17 - Chris received new word processing software for...Ch. 17 - Prepare a Gantt chart for each of the following in...Ch. 17 - a. Develop a list of activities and their...Ch. 17 - For each of the problems listed, determine the...Ch. 17 - PRINTED BY: 92248ddb24ccbc6@placeholder.10274.edu....Ch. 17 - Three recent college graduates have formed a...Ch. 17 - The new director of special events at a large...Ch. 17 - PRINTED BY: 92248ddb24ccbc6@placeholder.10274.edu....Ch. 17 - The project described in the following table is...Ch. 17 - The following precedence diagram reflects three...Ch. 17 - A project manager has compiled a list of major...Ch. 17 - Here is a list of activity times for a project as...Ch. 17 - The project manager of a task force planning the...Ch. 17 - PRINTED BY: 92248ddb24ccbc6@placeholder.10274.edu....Ch. 17 - Chucks Custom Boats (CCB) builds luxury yachts to...Ch. 17 - Prob. 17PCh. 17 - Create a risk matrix in the style of Figure 17.13...Ch. 17 - Create a risk matrix for this project: Explain...Ch. 17 - CASE: The Case of the Mexican crazy quilt 1. The...Ch. 17 - CASE: The Case of the Mexican crazy quilt 2. The...Ch. 17 - CASE: The Case of the Mexican crazy quilt 3. The...Ch. 17 - CASE: The Case of the Mexican crazy quilt 4. The...Ch. 17 - CASE: The Case of the Mexican crazy quilt 5. The...Ch. 17 - B. Smitty Smith is a project manager for a large...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- A company is willing to develop their rocket before the end of current financial year which is now 28 weeks away. The chief engineer of the company has decided to use PERT technique in order to plan, schedule and control program of development for the data given in table below. What is the probability that the program will be completed by the end of the current financial year? (all durations are in weeks). (i) G) Optimum Duration Most likely duration Pesimistic duration 1 2 3 8 13 3 2 8 4 3 8 10 4 7 10 3 6. 3 8 4 9 10 4 8. 4 9. 5 7 9. 12 6. 5 11 7 9. 14 8 4. 00 2.arrow_forward14 The expected activity time in PERT analysis is calculated as: Select one: a. the sum of the activity variances, divided by six. b. the sum of the optimistic, pessimistic, and most likely times. c. the sum of the optimistic, pessimistic, and most likely times, divided by six. d. the simple average of the optimistic, pessimistic, and most likely times. e. the weighted average of a, m, and b, with m weighted 4 times as heavily as a and b.arrow_forwardRoss Hopkins, president of Hopkins Hospitality, has developed the tasks, durations, and predecessor relationships in the following table for building new motels. Activity A B C F A a Time (weeks) 4 1 8 5 1 6 m 9 8 14 7 2 9 b 12 23 18 10 4 20 Immediate Predecessor(s) A A A B C, E Activity G H 1 J K a 3 1 7 4 1 Time (weeks) m 3 1 7 8 1 b 5 1 7 12 4 Immediate Predecessor(s) C, E F F D, G, H I, Jarrow_forward
- What is the minimum cost of crashing the following project that Roger Solano manages at Slippery Rock University by 4 days? Normal Cost $800 $200 $600 $750 $1,200 Normal Crash Activity Time (days) Time (days) 4 3 8 6 The total cost of crashing the project by 4 days is $ ABCDE 487 355 (Enter your response as a whole number.) Total Cost with Crashing Immediate Predecessor(s) $1,500 $1,650 By how many days should each activity be crashed to reduce the project completion time by 4 days? Fill in the table below. (Enter your responses as whole numbers.) Each Activity Should be Reduced BY (days) Activity A B C D E $1,100 $600 $650 A Carrow_forwardJordanne King, the project manager for Webjets International, Inc., compiled a table showing time estimates for each of the activities of a project to upgrade the company’s Web page, including optimistic, most likely, and pessimistic.a. Calculate the expected time, te, for each activity.b. Calculate the variance, s2, for each activity.Activity Optimistic (days) Most Likely (days) Pessimistic (days)A 3 8 19B 12 15 18C 2 6 16D 4 9 20E 1 4 7arrow_forwardGiven the information below, estimate the probability that the noncritical path B-C-G will take more than 15 weeks. Hint: Subtract from 1.0 the probability that B-C-G will take 15 weeks or less. Refer to the standard normal table. Question Viewer Activity Expected Time (weeks) Variance A 4.0 1.00 B 5.5 0.96 C 4.0 0.15 D 11.5 1.52 E 6.5 2.40 F 8.5 2.55 G 5.0 0.69 The probability that this path will take more than 15 weeks to complete is ☐. (Enter your response rounded to four decimal places.)arrow_forward
- I'm unable to answer the following question? What is the total cost of crashing the project from its current duration down to 13 weeks?arrow_forwarda. Develop a network drawing for Jeff Ross. b. Calculate the expected time and variances (Use two decimal places) c. Enumerate the paths and their corresponding finishing time.arrow_forwardThe project manager of Good Public Relations gathered the data shown in Table 7.15 for a new advertising campaign.a. How long is the project likely to take?b. What is the probability that the project will take more than 38 weeks?c. Consider the path A–E–G–H–J. What is the probability that this path will exceed 38 weeks?arrow_forward
- 2:30 PM ě 0.3KB/s 1ll 54 4G+ 00:15:12 Remaining Multiple Choice The primary difference between PERT and CPM is that CPM uses probabilities on the activity times and PERT does not. O. PERT considers activity costs and CPM does not. PERT can assign probabilities to activity times and CPM does not. CPM considers activity costs and PERT does not. 5 of 20 IIarrow_forwardDetails of a PERT/CPM problem is listed in the table below. Times are given in weeks. Activity Preceding Optimistic Time Probable Time Pessimistic Time A -- 7 9 14 B A 2 2 8 C A 8 12 16 D A 3 5 10 E B 4 6 8 F B 6 8 10 G C, F 2 3 4 H D 2 2 8 I H 6 8 16 J G, I 4 6 14 K E, J 2 2 5 Calculate the expected time & variance for each activity. Enter these values in the appropriate column in the table above. Which activities form the critical path? What is the estimated time of the critical path? What are the project variance and the project standard deviation? { 5. What is the probability of completion of the project after week 40?arrow_forwardA tank has been decommissioned for some years and there is a need to remove this tank as the land is required for other purposes. It is suspected of not being emptied properly and is now rusting and that waste of an indeterminate nature has been pumped into it in the past ie. Nobody knows with certainty what is in the tank. Provide an outline of how a HAZOP study needs to be set up for this project. Marking Guidance: a) Describing problem b) Preparation phase c) Examination phase d) Reporting and follow-up phasearrow_forward
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